You have a directory with files app1.log, app2.log, and app_backup.log. You want to use tab completion to list only files ending with .log. How can you do this?

hard📝 Application Q9 of 15

Linux CLI - Navigating the File System

You have a directory with files app1.log, app2.log, and app_backup.log. You want to use tab completion to list only files ending with .log. How can you do this?

AType <code>ls app</code> and press Tab once

BType <code>ls *.log</code> and press Tab twice

CType <code>ls app</code> and press Enter

DTab completion cannot filter by file extension

Step-by-Step Solution

Solution:

Step 1: Understand wildcard usage with tab completion
Typing a pattern like '*.log' and pressing Tab twice lists matching files.
Step 2: Analyze options
Type ls *.log and press Tab twice uses the pattern and double Tab to list only .log files; others do not filter by extension.
Final Answer:
Type ls *.log and press Tab twice -> Option B
Quick Check:
Wildcard + double Tab = Filtered list [OK]

Quick Trick: Use wildcards with Tab to filter file lists [OK]

Common Mistakes:

Expecting single Tab to filter
Pressing Enter instead of Tab
Thinking filtering impossible

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You have a directory with files app1.log, app2.log, and app_backup.log. You want to use tab completion to list only files ending with .log. How can you do this?

Step 1: Understand wildcard usage with tab completion

Step 2: Analyze options

Final Answer:

Quick Check:

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